阿富汗四名警察遭人体炸弹袭击身亡
At least four Afghan policemen were killed when a suicide bomber drove a truck packed with explosives into a police base, officials say.
阿富汗一位自杀式炸弹袭击者驾驶一辆卡车闯入某警察基地，至少四名警察被炸死。
The incident took place in Wardak province, south-west of the capital, Kabul. Seventeen others were wounded, some of them critically officials say.
The blast went off as worshippers gathered at the police base mosque for morning prayers, AFP reports.
The Taliban said they carried out the attack.
Members of the Afghan security forces are frequently targeted by militants.
The BBC's Jafar Haand in Kabul says the Narkh district, where the attack took place, is one of the most insecure areas of Wardak.
Many rural areas of the district are under Taliban control but Hizb-e-Islami insurgents are also active there.
Afghan forces are assuming more responsibility for security as Nato and US combat troops prepare to withdraw from the country by the end of 2014.